Лещук, Н. В., М. М. Таганцова, and С. Л. Мельничук. “Peculiarities of Rape Plant Identification Features Manifestation and Their Use During Formation of National Variety Sources”. Plant Varieties Studying and Protection, no. 4, Dec. 2006, pp. 65-70, doi:10.21498/2518-1017.4.2006.68030.